SLVAFR8
January 2025
TPS1685
,
TPS1689
,
TPS25984
,
TPS25984B
,
TPS25985
,
TPS25990
1
Abstract
Trademarks
1
Introduction
2
Over-Current Response of Conventional eFuse Devices
3
Challenges with Current Limit Functionality
4
Proposed Design Using TI's High-Current eFuses
4.1
Steady-State Over-Current Protection in TPS25984, TPS25985, TPS25990, and TPS1685 eFuses
4.2
Design Guideline
5
Thermal Performance with Continual Transient Load Current
6
System Level Advantages with TI's eFuse Design
6.1
Lower Number of eFuses to be Connected in Parallel
6.2
Reduced PSU Size
7
Summary
8
References
8
References
Texas Instruments,
TPS25984: 4.5-V to 16-V, 0.8-mΩ, 70-A stackable eFuse with accurate and fast current monitor
data sheet.
Texas Instruments,
TPS25985: 4.5-V to 16-V, 0.59-mΩ, 80-A Stackable Compact eFuse with Accurate and Fast Current Monitor
data sheet.
Texas Instruments,
TPS25984Bx: 4.5V–16V, 0.8mΩ, 70A Stackable Integrated Hotswap (eFuse) With Accurate and Fast Current Monitor
data sheet.
Texas Instruments,
TPS25990: 2.9-V to 16-V, 0.79-mΩ, 60-A eFuse With Digital Telemetry Controller
data sheet.
Texas Instruments,
TPS1685x 9V–80V, 3.65mΩ, 20A Stackable Integrated Hotswap (eFuse) With Accurate and Fast Current Monitor
data sheet.